Home / 12,310.65-16,988.49-7,005.36

Finding the Fourth Proportional to 12,310.65, 16,988.49 and 7,005.36

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Solution

The fourth proportional to 12,310.65, 16,988.49 and 7,005.36 is: 9,667.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,310.65 : 16,988.49 = 7,005.36 : x
  2. Step 2: Convert to fraction form
    12,310.65/16,988.49 = 7,005.36/x
  3. Step 3: Cross multiply
    12,310.65x = 16,988.49 × 7,005.36
  4. Step 4: Simplify right side
    12,310.65x = 119,010,488.31
  5. Step 5: Solve for x
    x = 119,010,488.31/12,310.65
  6. Step 6: Final answer
    x = 9,667.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.